ASN Wikibase Occurrence # 377576
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| Date: | Sunday 10 March 1985 |
| Time: | 15:00 LT |
| Type: |  Rockwell Commander 112A |
| Owner/operator: | Jim Webb |
| Registration: | N1339J |
| MSN: | 339 |
| Year of manufacture: | 1975 |
| Total airframe hrs: | 1035 hours |
| Engine model: | LYCOMING IO-360 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Waynesburg, PA -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE ACFT WAS LANDED GEAR-UP IN A FLD FOLLOWING A LOSS OF PWR DURING AN INITIAL TAKEOFF CLIMB. PURPOSE OF THE FLT WAS TO CHECK THE ENG AS IT HAD BEEN DISASSEMBLED BECAUSE OF METAL CONTAMINATION FROM THE CENTER MAIN BEARING. POST ACCIDENT INSPECTION OF THE ENG DISCLOSED THE #1, #2 AND #4 CYLINDER SPARK PLUG ELECTRODES WERE PEENED WITH BROKEN OUT SECTIONS AND CERAMIC POSTS. THE RESPECTIVE CYLINDER BARRELS AND PISTON HEADS WERE FOUND BADLY MARKED. THE #3 PISTON HEAD WAS SLIGHTLY MARKED AND PEENING WAS BISIBLE ON THE VALVE HEADS. INTAKE AND EXHAUST PIPES SHOWED SCRAPE MARKS WHEN REMOVED. A 1/8 INCH PIECE OF ALUMINUM PIPE WAS FOUND INSIDE THE #4 INTAKE PIPE.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB NYC85LA077
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Mar-2024 14:10 | ASN Update Bot | Added |
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